The genus Cladosporium and similar dematiaceous ... - CBS - KNAW
The genus Cladosporium and similar dematiaceous ... - CBS - KNAW
The genus Cladosporium and similar dematiaceous ... - CBS - KNAW
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Crous et al.<br />
have conidiomata ranging from acervuli to pycnidia (Cortinas et<br />
al. 2006). Phylogenetically this coelomycete morphology, with<br />
its characteristic conidiogenesis, has evolved several times in<br />
Teratosphaeriaceae.<br />
Readeriella blakelyi (Crous & Summerell) Crous & U. Braun,<br />
comb. nov. MycoBank MB504516.<br />
Basionym: Colletogloeopsis blakelyi Crous & Summerell, Fungal<br />
Diversity 23: 342. 2006.<br />
Readeriella brunneotingens Crous & Summerell, sp. nov.<br />
MycoBank MB504517. Fig. 19.<br />
Etymology: Named after the diffuse brown pigment visible in agar<br />
when cultivated on MEA.<br />
Readeriellae gauchensi similis, sed coloniis viridi-atris et pigmento brunneo in agaro<br />
diffundente distinguenda.<br />
Leaf spots amphigenous, irregular specks up to 3 mm diam,<br />
medium brown with a thin, raised, concolorous border. Conidiomata<br />
amphigenous, substomatal, exuding conidia in black masses;<br />
conidiomata pycnidial in vivo <strong>and</strong> in vitro, globose, brown to black,<br />
up to 120 µm diam; wall consisting of 3–4 cell layers of brown<br />
cells of textura angularis. Conidiogenous cells brown, verruculose,<br />
aseptate, doliiform to ampulliform, or reduced to inconspicuous loci<br />
on hyphae (in vitro), proliferating percurrently near the apex, 5–7 ×<br />
3–5 µm; sympodial proliferation also observed in culture. Conidia<br />
brown, smooth to finely verruculose, ellipsoidal to subcylindrical,<br />
apex obtuse to subobtuse, tapering to a subtruncate or truncate<br />
base (1–1.5 µm wide) with inconspicuous, minute marginal frill,<br />
(5–)6–7(–8) × 2–3(–3.5) µm in vitro, becoming 1-septate; in older<br />
cultures becoming swollen, <strong>and</strong> up to 2-septate, 15 µm long <strong>and</strong><br />
5 µm wide.<br />
Cultural characteristics: Colonies on MEA reaching 20 mm diam<br />
after 2 mo at 25 °C; colonies erumpent, aerial mycelium sparse to<br />
absent, margins smooth but irregularly lobate; surface irregularly<br />
folded, greenish black, with profuse sporulation, visible as oozing<br />
black conidial masses; a diffuse dark-brown pigment is also<br />
produced, resulting in inoculated MEA plates appearing darkbrown.<br />
Specimen examined: Australia, Queensl<strong>and</strong>, Cairns, Eureka Creek, 48 km from<br />
Mareeba, S 17° 11’ 13.2”, E 145° 02’ 27.4”, 468 m, on leaves of Eucalyptus<br />
tereticornis, 26 Aug. 2006, P.W. Crous, <strong>CBS</strong>-H 19838 holotype, culture ex-type<br />
CPC 13303 = <strong>CBS</strong> 120747.<br />
Notes: Conidial dimensions of R. brunneotingens closely<br />
match those of Readeriella gauchensis (M.-N. Cortinas, Crous<br />
& M.J. Wingf.) Crous (Cortinas et al. 2006). <strong>The</strong> two species<br />
can be distinguished in culture, however, in that colonies of R.<br />
brunneotingens are greenish black in colour, sporulate profusely,<br />
<strong>and</strong> exude a diffuse, brown pigment into the agar, whereas colonies<br />
of R. gauchensis are more greenish olivaceous, <strong>and</strong> exude a yellow<br />
pigment into the agar (Cortinas et al. 2006).<br />
Readeriella considenianae (Crous & Summerell) Crous & U.<br />
Braun, comb. nov. MycoBank MB504518.<br />
Basionym: Colletogloeopsis considenianae Crous & Summerell,<br />
Fungal Diversity 23: 343. 2006.<br />
≡ Phaeophleospora destructans (M.J. Wingf. & Crous) Crous, F.A. Ferreira<br />
& B. Sutton, S. African J. Bot. 63: 113. 1997.<br />
Readeriella dimorpha (Crous & Carnegie) Crous & U. Braun,<br />
comb. nov. MycoBank MB504520.<br />
Basionym: Colletogloeopsis dimorpha Crous & Carnegie, Fungal<br />
Diversity 23: 345. 2006.<br />
Readeriella gauchensis (M.-N. Cortinas, Crous & M.J. Wingf.)<br />
Crous & U. Braun, comb. nov. MycoBank MB504521.<br />
Basionym: Colletogloeopsis gauchensis M.-N. Cortinas, Crous &<br />
M.J. Wingf., Stud. Mycol. 55: 143. 2006.<br />
Readeriella pulcherrima (Gadgil & M. Dick) Crous & U. Braun,<br />
comb. nov. MycoBank MB504522.<br />
Basionym: Septoria pulcherrima Gadgil & M. Dick, New Zeal<strong>and</strong> J.<br />
Bot. 21: 49. 1983.<br />
≡ Stagonospora pulcherrima (Gadgil & M. Dick) H.J. Swart, Trans. Brit.<br />
Mycol. Soc. 90: 285. 1988.<br />
= Cercospora eucalypti Cooke & Massee, Grevillea 18: 7. 1889.<br />
≡ Kirramyces eucalypti (Cooke & Massee) J. Walker, B. Sutton & Pascoe,<br />
Mycol. Res. 96: 920. 1992.<br />
≡ Phaeophleospora eucalypti (Cooke & Massee) Crous, F.A. Ferreira & B.<br />
Sutton, S. African J. Bot. 63: 113. 1997.<br />
Notes: <strong>The</strong> epithet “eucalypti” is preoccupied by Readeriella<br />
eucalypti (Gonz. Frag.) Crous (Summerell et al., 2006), <strong>and</strong> thus<br />
the synonym “pulcherrima” becomes the next available name for<br />
this species.<br />
Readeriella readeriellophora, see Teratosphaeria readeriellophora.<br />
Fig. 18.<br />
Readeriella stellenboschiana (Crous) Crous & U. Braun, comb.<br />
nov. MycoBank MB504523.<br />
Basionym: Colletogloeopsis stellenboschiana Crous, Stud. Mycol.<br />
55: 110. 2006.<br />
Readeriella zuluensis (M.J. Wingf., Crous & T.A. Cout.) Crous &<br />
U. Braun, comb. nov. MycoBank MB504524.<br />
Basionym: Coniothyrium zuluense M.J. Wingf., Crous & T.A. Cout.,<br />
Mycopathologia 136: 142. 1997.<br />
≡ Colletogloeopsis zuluensis (M.J. Wingf., Crous & T.A. Cout.) M.-N.<br />
Cortinas, M.J. Wingf. & Crous (zuluense), Mycol. Res. 110: 235. 2006.<br />
Staninwardia B. Sutton, Trans. Br. Mycol. Soc. 57: 540. 1971.<br />
Type species: Staninwardia breviuscula B. Sutton, Trans. Br. Mycol.<br />
Soc. 57: 540. 1971.<br />
Description: Sutton (1971; fig. 1).<br />
Notes: <strong>The</strong> <strong>genus</strong> Staninwardia presently contains two species,<br />
namely S. breviuscula <strong>and</strong> Staninwardia suttonii Crous & Summerell<br />
(Summerell et al. 2006), though its placement in Capnodiales was<br />
less well resolved. <strong>The</strong> <strong>genus</strong> forms acervuli on brown leaf spots,<br />
with brown, catenulate conidia covered in a mucilaginous sheath.<br />
Readeriella destructans (M.J. Wingf. & Crous) Crous & U. Braun,<br />
comb. nov. MycoBank MB504519.<br />
Basionym: Kirramyces destructans M.J. Wingf. & Crous, S. African<br />
J. Bot. 62: 325. 1996.<br />
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